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<a name="1" href="#1">1</a>   <strong class="jxr_keyword">package</strong> org.methodize.nntprss.feed.parser;
<a name="2" href="#2">2</a>   
<a name="3" href="#3">3</a>   <em class="jxr_comment">/*<em class="jxr_comment"> -----------------------------------------------------------</em></em>
<a name="4" href="#4">4</a>   <em class="jxr_comment"> * nntp//rss - a bridge between the RSS world and NNTP clients</em>
<a name="5" href="#5">5</a>   <em class="jxr_comment"> * Copyright (c) 2002-2007 Jason Brome.  All Rights Reserved.</em>
<a name="6" href="#6">6</a>   <em class="jxr_comment"> *</em>
<a name="7" href="#7">7</a>   <em class="jxr_comment"> * email: nntprss@methodize.org</em>
<a name="8" href="#8">8</a>   <em class="jxr_comment"> * mail:  Jason Brome</em>
<a name="9" href="#9">9</a>   <em class="jxr_comment"> *        PO Box 222-WOB</em>
<a name="10" href="#10">10</a>  <em class="jxr_comment"> *        West Orange</em>
<a name="11" href="#11">11</a>  <em class="jxr_comment"> *        NJ 07052-0222</em>
<a name="12" href="#12">12</a>  <em class="jxr_comment"> * </em>
<a name="13" href="#13">13</a>  <em class="jxr_comment"> * This file is part of nntp//rss</em>
<a name="14" href="#14">14</a>  <em class="jxr_comment"> * </em>
<a name="15" href="#15">15</a>  <em class="jxr_comment"> * nntp//rss is free software; you can redistribute it </em>
<a name="16" href="#16">16</a>  <em class="jxr_comment"> * and/or modify it under the terms of the GNU General </em>
<a name="17" href="#17">17</a>  <em class="jxr_comment"> * Public License as published by the Free Software Foundation; </em>
<a name="18" href="#18">18</a>  <em class="jxr_comment"> * either version 2 of the License, or (at your option) any </em>
<a name="19" href="#19">19</a>  <em class="jxr_comment"> * later version.</em>
<a name="20" href="#20">20</a>  <em class="jxr_comment"> *</em>
<a name="21" href="#21">21</a>  <em class="jxr_comment"> * This program is distributed in the hope that it will be </em>
<a name="22" href="#22">22</a>  <em class="jxr_comment"> * useful, but WITHOUT ANY WARRANTY; without even the implied </em>
<a name="23" href="#23">23</a>  <em class="jxr_comment"> * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR </em>
<a name="24" href="#24">24</a>  <em class="jxr_comment"> * PURPOSE.  See the GNU General Public License for more </em>
<a name="25" href="#25">25</a>  <em class="jxr_comment"> * details.</em>
<a name="26" href="#26">26</a>  <em class="jxr_comment"> *</em>
<a name="27" href="#27">27</a>  <em class="jxr_comment"> * You should have received a copy of the GNU General Public </em>
<a name="28" href="#28">28</a>  <em class="jxr_comment"> * License along with this program; if not, write to the </em>
<a name="29" href="#29">29</a>  <em class="jxr_comment"> * Free Software Foundation, Inc., 59 Temple Place, Suite 330, </em>
<a name="30" href="#30">30</a>  <em class="jxr_comment"> * Boston, MA  02111-1307  USA</em>
<a name="31" href="#31">31</a>  <em class="jxr_comment"> * ----------------------------------------------------- */</em>
<a name="32" href="#32">32</a>  
<a name="33" href="#33">33</a>  <strong class="jxr_keyword">import</strong> java.io.IOException;
<a name="34" href="#34">34</a>  <strong class="jxr_keyword">import</strong> java.net.URI;
<a name="35" href="#35">35</a>  <strong class="jxr_keyword">import</strong> java.net.URISyntaxException;
<a name="36" href="#36">36</a>  <strong class="jxr_keyword">import</strong> java.security.MessageDigest;
<a name="37" href="#37">37</a>  <strong class="jxr_keyword">import</strong> java.security.NoSuchAlgorithmException;
<a name="38" href="#38">38</a>  <strong class="jxr_keyword">import</strong> java.text.ParseException;
<a name="39" href="#39">39</a>  <strong class="jxr_keyword">import</strong> java.text.SimpleDateFormat;
<a name="40" href="#40">40</a>  <strong class="jxr_keyword">import</strong> java.util.*;
<a name="41" href="#41">41</a>  
<a name="42" href="#42">42</a>  <strong class="jxr_keyword">import</strong> org.apache.log4j.Logger;
<a name="43" href="#43">43</a>  <strong class="jxr_keyword">import</strong> org.methodize.nntprss.feed.Channel;
<a name="44" href="#44">44</a>  <strong class="jxr_keyword">import</strong> org.methodize.nntprss.feed.Item;
<a name="45" href="#45">45</a>  <strong class="jxr_keyword">import</strong> org.methodize.nntprss.feed.db.ChannelDAO;
<a name="46" href="#46">46</a>  <strong class="jxr_keyword">import</strong> org.methodize.nntprss.util.XMLHelper;
<a name="47" href="#47">47</a>  <strong class="jxr_keyword">import</strong> org.w3c.dom.Attr;
<a name="48" href="#48">48</a>  <strong class="jxr_keyword">import</strong> org.w3c.dom.Element;
<a name="49" href="#49">49</a>  <strong class="jxr_keyword">import</strong> org.w3c.dom.NodeList;
<a name="50" href="#50">50</a>  
<a name="51" href="#51">51</a>  <em class="jxr_javadoccomment">/**</em>
<a name="52" href="#52">52</a>  <em class="jxr_javadoccomment"> * @author Jason Brome &lt;jason@methodize.org&gt;</em>
<a name="53" href="#53">53</a>  <em class="jxr_javadoccomment"> * @version $Id: AtomParser.java,v 1.13 2007/12/17 04:12:42 jasonbrome Exp $</em>
<a name="54" href="#54">54</a>  <em class="jxr_javadoccomment"> */</em>
<a name="55" href="#55">55</a>  
<a name="56" href="#56">56</a>  <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">class</strong> <a href="../../../../../org/methodize/nntprss/feed/parser/AtomParser.html">AtomParser</a> <strong class="jxr_keyword">extends</strong> <a href="../../../../../org/methodize/nntprss/feed/parser/GenericParser.html">GenericParser</a> {
<a name="57" href="#57">57</a>  
<a name="58" href="#58">58</a>      <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> String XMLNS_OLD_ATOM = <span class="jxr_string">"http://purl.org/atom/ns#"</span>;
<a name="59" href="#59">59</a>      <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> String XMLNS_ATOM = <span class="jxr_string">"http://www.w3.org/2005/Atom"</span>;
<a name="60" href="#60">60</a>  
<a name="61" href="#61">61</a>      <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> ThreadLocal dateParsers = <strong class="jxr_keyword">new</strong> ThreadLocal() {
<a name="62" href="#62">62</a>          @Override
<a name="63" href="#63">63</a>          <strong class="jxr_keyword">public</strong> Object initialValue() {
<a name="64" href="#64">64</a>              SimpleDateFormat[] dcDateArray =
<a name="65" href="#65">65</a>                  <strong class="jxr_keyword">new</strong> SimpleDateFormat[] {
<a name="66" href="#66">66</a>                      <strong class="jxr_keyword">new</strong> SimpleDateFormat(<span class="jxr_string">"yyyy-MM-dd'T'HH:mm:ssz"</span>),
<a name="67" href="#67">67</a>                      <strong class="jxr_keyword">new</strong> SimpleDateFormat(<span class="jxr_string">"yyyy-MM-dd HH:mm:ssz"</span>),
<a name="68" href="#68">68</a>                      <strong class="jxr_keyword">new</strong> SimpleDateFormat(<span class="jxr_string">"yyyy-MM-dd'T'HH:mm:ss'Z'"</span>),
<a name="69" href="#69">69</a>                      <strong class="jxr_keyword">new</strong> SimpleDateFormat(<span class="jxr_string">"yyyy-MM-dd HH:mm:ss'Z'"</span>)};
<a name="70" href="#70">70</a>  
<a name="71" href="#71">71</a>              TimeZone gmt = TimeZone.getTimeZone(<span class="jxr_string">"GMT"</span>);
<a name="72" href="#72">72</a>              <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> tz = 0; tz &lt; dcDateArray.length; tz++) {
<a name="73" href="#73">73</a>                  dcDateArray[tz].setTimeZone(gmt);
<a name="74" href="#74">74</a>              }
<a name="75" href="#75">75</a>  
<a name="76" href="#76">76</a>              <strong class="jxr_keyword">return</strong> dcDateArray;
<a name="77" href="#77">77</a>          }
<a name="78" href="#78">78</a>      };
<a name="79" href="#79">79</a>  
<a name="80" href="#80">80</a>      <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> <a href="../../../../../org/methodize/nntprss/feed/parser/AtomParser.html">AtomParser</a> atomParser = <strong class="jxr_keyword">new</strong> <a href="../../../../../org/methodize/nntprss/feed/parser/AtomParser.html">AtomParser</a>();
<a name="81" href="#81">81</a>      <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> Logger log = Logger.getLogger(AtomParser.<strong class="jxr_keyword">class</strong>);
<a name="82" href="#82">82</a>  
<a name="83" href="#83">83</a>      <strong class="jxr_keyword">private</strong> <a href="../../../../../org/methodize/nntprss/feed/parser/AtomParser.html">AtomParser</a>() {
<a name="84" href="#84">84</a>      }
<a name="85" href="#85">85</a>  
<a name="86" href="#86">86</a>      <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> <a href="../../../../../org/methodize/nntprss/feed/parser/GenericParser.html">GenericParser</a> getParser() {
<a name="87" href="#87">87</a>          <strong class="jxr_keyword">return</strong> atomParser;
<a name="88" href="#88">88</a>      }
<a name="89" href="#89">89</a>  
<a name="90" href="#90">90</a>      <em class="jxr_javadoccomment">/**</em>
<a name="91" href="#91">91</a>  <em class="jxr_javadoccomment">     * @param docRootElement Root element of feed document</em>
<a name="92" href="#92">92</a>  <em class="jxr_javadoccomment">     * @return</em>
<a name="93" href="#93">93</a>  <em class="jxr_javadoccomment">     */</em>
<a name="94" href="#94">94</a>      @Override
<a name="95" href="#95">95</a>      <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">boolean</strong> isParsable(Element docRootElement) {
<a name="96" href="#96">96</a>          <strong class="jxr_keyword">if</strong> (docRootElement.getNodeName().equals(<span class="jxr_string">"feed"</span>)) {
<a name="97" href="#97">97</a>              <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">true</strong>;
<a name="98" href="#98">98</a>          } <strong class="jxr_keyword">else</strong> {
<a name="99" href="#99">99</a>              <strong class="jxr_keyword">return</strong> false;
<a name="100" href="#100">100</a>         }
<a name="101" href="#101">101</a>     }
<a name="102" href="#102">102</a> 
<a name="103" href="#103">103</a>     @Override
<a name="104" href="#104">104</a>     <strong class="jxr_keyword">public</strong> String getFormatVersion(Element docRootElement) {
<a name="105" href="#105">105</a>         String atomVersion;
<a name="106" href="#106">106</a> 
<a name="107" href="#107">107</a>         <strong class="jxr_keyword">if</strong> (docRootElement.getNodeName().equals(<span class="jxr_string">"feed"</span>)) {
<a name="108" href="#108">108</a>             atomVersion = <span class="jxr_string">"Atom "</span> + docRootElement.getAttribute(<span class="jxr_string">"version"</span>);
<a name="109" href="#109">109</a>         } <strong class="jxr_keyword">else</strong> {
<a name="110" href="#110">110</a>             atomVersion = <span class="jxr_string">"Unknown Atom"</span>;
<a name="111" href="#111">111</a>         }
<a name="112" href="#112">112</a>         <strong class="jxr_keyword">return</strong> atomVersion;
<a name="113" href="#113">113</a>     }
<a name="114" href="#114">114</a> 
<a name="115" href="#115">115</a>     @Override
<a name="116" href="#116">116</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> extractFeedInfo(Element docRootElement, <a href="../../../../../org/methodize/nntprss/feed/Channel.html">Channel</a> channel) {
<a name="117" href="#117">117</a>         <em class="jxr_comment">// Read header...</em>
<a name="118" href="#118">118</a>         channel.setTitle(
<a name="119" href="#119">119</a>             XMLHelper.getChildElementValue(docRootElement, <span class="jxr_string">"title"</span>));
<a name="120" href="#120">120</a>         <em class="jxr_comment">// XXX Currently assign channelTitle to author</em>
<a name="121" href="#121">121</a>         channel.setAuthor(channel.getTitle());
<a name="122" href="#122">122</a> 
<a name="123" href="#123">123</a>     	URI xmlBase = extractXmlBase(docRootElement, channel);
<a name="124" href="#124">124</a>         channel.setLink(extractLink(channel, docRootElement, xmlBase));
<a name="125" href="#125">125</a> 
<a name="126" href="#126">126</a>         <em class="jxr_comment">// @TODO: Summary or Subtitle?</em>
<a name="127" href="#127">127</a>         String description;
<a name="128" href="#128">128</a>         description = XMLHelper.getChildElementValue(docRootElement, <span class="jxr_string">"summary"</span>);
<a name="129" href="#129">129</a>         <strong class="jxr_keyword">if</strong> (description == <strong class="jxr_keyword">null</strong> || description.length() == 0) {
<a name="130" href="#130">130</a>             description =
<a name="131" href="#131">131</a>                 XMLHelper.getChildElementValue(docRootElement, <span class="jxr_string">"subtitle"</span>);
<a name="132" href="#132">132</a>         }
<a name="133" href="#133">133</a>         channel.setDescription(description);
<a name="134" href="#134">134</a> 
<a name="135" href="#135">135</a>         <em class="jxr_comment">// Build author...</em>
<a name="136" href="#136">136</a>         NodeList authorList = docRootElement.getElementsByTagName(<span class="jxr_string">"author"</span>);
<a name="137" href="#137">137</a>         <strong class="jxr_keyword">if</strong> (authorList.getLength() &gt; 0) {
<a name="138" href="#138">138</a>             Element authorElm = (Element) authorList.item(0);
<a name="139" href="#139">139</a>             channel.setManagingEditor(extractAuthor(authorElm));
<a name="140" href="#140">140</a>         } <strong class="jxr_keyword">else</strong> {
<a name="141" href="#141">141</a>             channel.setManagingEditor(<strong class="jxr_keyword">null</strong>);
<a name="142" href="#142">142</a>         }
<a name="143" href="#143">143</a>     }
<a name="144" href="#144">144</a> 
<a name="145" href="#145">145</a>     <strong class="jxr_keyword">private</strong> String extractAuthor(Element authorElm) {
<a name="146" href="#146">146</a>         StringBuffer author = <strong class="jxr_keyword">new</strong> StringBuffer();
<a name="147" href="#147">147</a>         String name = XMLHelper.getChildElementValue(authorElm, <span class="jxr_string">"name"</span>);
<a name="148" href="#148">148</a>         String email = XMLHelper.getChildElementValue(authorElm, <span class="jxr_string">"email"</span>);
<a name="149" href="#149">149</a>         <strong class="jxr_keyword">if</strong> (name != <strong class="jxr_keyword">null</strong> &amp;&amp; name.length() &gt; 0) {
<a name="150" href="#150">150</a>             author.append(name);
<a name="151" href="#151">151</a>         }
<a name="152" href="#152">152</a> 
<a name="153" href="#153">153</a>         <strong class="jxr_keyword">if</strong> (email != <strong class="jxr_keyword">null</strong> &amp;&amp; email.length() &gt; 0) {
<a name="154" href="#154">154</a>             <strong class="jxr_keyword">if</strong> (author.length() &gt; 0) {
<a name="155" href="#155">155</a>                 author.append(<span class="jxr_string">" ("</span>).append(email).append(<span class="jxr_string">")"</span>);
<a name="156" href="#156">156</a>             } <strong class="jxr_keyword">else</strong> {
<a name="157" href="#157">157</a>                 author.append(email);
<a name="158" href="#158">158</a>             }
<a name="159" href="#159">159</a>         }
<a name="160" href="#160">160</a>         <strong class="jxr_keyword">return</strong> author.toString();
<a name="161" href="#161">161</a>     }
<a name="162" href="#162">162</a> 
<a name="163" href="#163">163</a>     @Override
<a name="164" href="#164">164</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> processFeedItems(
<a name="165" href="#165">165</a>         Element rootElm,
<a name="166" href="#166">166</a>         <a href="../../../../../org/methodize/nntprss/feed/Channel.html">Channel</a> channel,
<a name="167" href="#167">167</a>         <a href="../../../../../org/methodize/nntprss/feed/db/ChannelDAO.html">ChannelDAO</a> channelDAO,
<a name="168" href="#168">168</a>         <strong class="jxr_keyword">boolean</strong> keepHistory)
<a name="169" href="#169">169</a>         <strong class="jxr_keyword">throws</strong> NoSuchAlgorithmException, IOException {
<a name="170" href="#170">170</a> 
<a name="171" href="#171">171</a>     	URI xmlBase = extractXmlBase(rootElm, channel);
<a name="172" href="#172">172</a>     	
<a name="173" href="#173">173</a>         NodeList entryList = rootElm.getElementsByTagName(<span class="jxr_string">"entry"</span>);
<a name="174" href="#174">174</a> 
<a name="175" href="#175">175</a>         Calendar retrievalDate = Calendar.getInstance();
<a name="176" href="#176">176</a>         retrievalDate.add(Calendar.SECOND, -entryList.getLength());
<a name="177" href="#177">177</a> 
<a name="178" href="#178">178</a>         Set currentSignatures = <strong class="jxr_keyword">null</strong>;
<a name="179" href="#179">179</a>         <strong class="jxr_keyword">if</strong> (!keepHistory) {
<a name="180" href="#180">180</a>             currentSignatures = <strong class="jxr_keyword">new</strong> HashSet();
<a name="181" href="#181">181</a>         }
<a name="182" href="#182">182</a> 
<a name="183" href="#183">183</a>         Map newItems = <strong class="jxr_keyword">new</strong> HashMap();
<a name="184" href="#184">184</a>         Map newItemKeys = <strong class="jxr_keyword">new</strong> HashMap();
<a name="185" href="#185">185</a>         <em class="jxr_comment">// orderedItems maintains original document first-to-last order</em>
<a name="186" href="#186">186</a>         <em class="jxr_comment">// Assumption: Items in the Atom document go from most recent</em>
<a name="187" href="#187">187</a>         <em class="jxr_comment">// to earliest.  This is used to assign date/times in a reasonably</em>
<a name="188" href="#188">188</a>         <em class="jxr_comment">// sensible order to those feeds that do not provide a date</em>
<a name="189" href="#189">189</a> 
<a name="190" href="#190">190</a>         List orderedItems = <strong class="jxr_keyword">new</strong> ArrayList();
<a name="191" href="#191">191</a> 
<a name="192" href="#192">192</a>         <em class="jxr_comment">// Calculate signature</em>
<a name="193" href="#193">193</a>         MessageDigest md = MessageDigest.getInstance(<span class="jxr_string">"MD5"</span>);
<a name="194" href="#194">194</a> 
<a name="195" href="#195">195</a>         <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> itemCount = entryList.getLength() - 1;
<a name="196" href="#196">196</a>             itemCount &gt;= 0;
<a name="197" href="#197">197</a>             itemCount--) {
<a name="198" href="#198">198</a>             Element itemElm = (Element) entryList.item(itemCount);
<a name="199" href="#199">199</a>             String signatureStr = generateItemSignature(md, itemElm);
<a name="200" href="#200">200</a> 
<a name="201" href="#201">201</a>             <strong class="jxr_keyword">if</strong> (!keepHistory) {
<a name="202" href="#202">202</a>                 currentSignatures.add(signatureStr);
<a name="203" href="#203">203</a>             }
<a name="204" href="#204">204</a>             newItems.put(signatureStr, itemElm);
<a name="205" href="#205">205</a>             newItemKeys.put(itemElm, signatureStr);
<a name="206" href="#206">206</a>             orderedItems.add(itemElm);
<a name="207" href="#207">207</a>         }
<a name="208" href="#208">208</a> 
<a name="209" href="#209">209</a>         <strong class="jxr_keyword">if</strong> (newItems.size() &gt; 0) {
<a name="210" href="#210">210</a>             <em class="jxr_comment">// Discover new items...</em>
<a name="211" href="#211">211</a>             Set newItemSignatures =
<a name="212" href="#212">212</a>                 channelDAO.findNewItemSignatures(channel, newItems.keySet());
<a name="213" href="#213">213</a> 
<a name="214" href="#214">214</a>             <strong class="jxr_keyword">if</strong> (newItemSignatures.size() &gt; 0) {
<a name="215" href="#215">215</a>                 <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> i = 0; i &lt; orderedItems.size(); i++) {
<a name="216" href="#216">216</a>                     Element entryElm = (Element) orderedItems.get(i);
<a name="217" href="#217">217</a>                     String signatureStr = (String) newItemKeys.get(entryElm);
<a name="218" href="#218">218</a> 
<a name="219" href="#219">219</a>                     <em class="jxr_comment">// If signature is not in new items set, skip...</em>
<a name="220" href="#220">220</a>                     <strong class="jxr_keyword">if</strong> (!newItemSignatures.contains(signatureStr))
<a name="221" href="#221">221</a>                         <strong class="jxr_keyword">continue</strong>;
<a name="222" href="#222">222</a> 
<a name="223" href="#223">223</a>                     String title =
<a name="224" href="#224">224</a>                         XMLHelper.getChildElementValue(entryElm, <span class="jxr_string">"title"</span>, <span class="jxr_string">""</span>);
<a name="225" href="#225">225</a>                     <em class="jxr_comment">//					String link =</em>
<a name="226" href="#226">226</a>                     <em class="jxr_comment">//						XMLHelper.getChildElementValue(entryElm, "link", "");</em>
<a name="227" href="#227">227</a>                     String link = extractLink(channel, entryElm, xmlBase);
<a name="228" href="#228">228</a> 
<a name="229" href="#229">229</a>                     String guid =
<a name="230" href="#230">230</a>                         XMLHelper.getChildElementValue(entryElm, <span class="jxr_string">"id"</span>);
<a name="231" href="#231">231</a>                     <strong class="jxr_keyword">boolean</strong> guidIsPermaLink = false;
<a name="232" href="#232">232</a>                     <em class="jxr_comment">//					if (guid != null) {</em>
<a name="233" href="#233">233</a>                     <em class="jxr_comment">//						String guidIsPermaLinkStr =</em>
<a name="234" href="#234">234</a>                     <em class="jxr_comment">//							XMLHelper.getChildElementAttributeValue(</em>
<a name="235" href="#235">235</a>                     <em class="jxr_comment">//								itemElm,</em>
<a name="236" href="#236">236</a>                     <em class="jxr_comment">//								"guid",</em>
<a name="237" href="#237">237</a>                     <em class="jxr_comment">//								"guidIsPermaLink");</em>
<a name="238" href="#238">238</a>                     <em class="jxr_comment">//						if (guidIsPermaLinkStr != null) {</em>
<a name="239" href="#239">239</a>                     <em class="jxr_comment">//							guidIsPermaLink =</em>
<a name="240" href="#240">240</a>                     <em class="jxr_comment">//								guidIsPermaLinkStr.equalsIgnoreCase("true");</em>
<a name="241" href="#241">241</a>                     <em class="jxr_comment">//						}</em>
<a name="242" href="#242">242</a>                     <em class="jxr_comment">//					}</em>
<a name="243" href="#243">243</a> 
<a name="244" href="#244">244</a>                     <em class="jxr_comment">// Handle xhtml:body / content:encoded / description</em>
<a name="245" href="#245">245</a>                     String description = processContent(entryElm);
<a name="246" href="#246">246</a> 
<a name="247" href="#247">247</a>                     <em class="jxr_comment">// @TODO: Comments in Atom?</em>
<a name="248" href="#248">248</a>                     String comments = <strong class="jxr_keyword">null</strong>;
<a name="249" href="#249">249</a> 
<a name="250" href="#250">250</a>                     <em class="jxr_comment">// Date - use modified, if not present use created</em>
<a name="251" href="#251">251</a>                     String pubDateStr =
<a name="252" href="#252">252</a>                         XMLHelper.getChildElementValue(entryElm, <span class="jxr_string">"modified"</span>);
<a name="253" href="#253">253</a>                     <strong class="jxr_keyword">if</strong> (pubDateStr == <strong class="jxr_keyword">null</strong> || pubDateStr.length() == 0) {
<a name="254" href="#254">254</a>                         pubDateStr =
<a name="255" href="#255">255</a>                             XMLHelper.getChildElementValue(entryElm, <span class="jxr_string">"created"</span>);
<a name="256" href="#256">256</a>                     }
<a name="257" href="#257">257</a> 
<a name="258" href="#258">258</a>                     Date pubDate = <strong class="jxr_keyword">null</strong>;
<a name="259" href="#259">259</a> 
<a name="260" href="#260">260</a>                     <strong class="jxr_keyword">if</strong> (pubDateStr != <strong class="jxr_keyword">null</strong> &amp;&amp; pubDateStr.length() &gt; 0) {
<a name="261" href="#261">261</a>                         log.debug(<span class="jxr_string">"create/modified == "</span> + pubDateStr);
<a name="262" href="#262">262</a>                         SimpleDateFormat[] dateParserArray =
<a name="263" href="#263">263</a>                             (SimpleDateFormat[]) dateParsers.get();
<a name="264" href="#264">264</a>                         <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> parseCount = 0;
<a name="265" href="#265">265</a>                             parseCount &lt; dateParserArray.length;
<a name="266" href="#266">266</a>                             parseCount++) {
<a name="267" href="#267">267</a>                             <strong class="jxr_keyword">try</strong> {
<a name="268" href="#268">268</a>                                 pubDate =
<a name="269" href="#269">269</a>                                     dateParserArray[parseCount].parse(
<a name="270" href="#270">270</a>                                         pubDateStr);
<a name="271" href="#271">271</a>                             } <strong class="jxr_keyword">catch</strong> (ParseException pe) {
<a name="272" href="#272">272</a>                             }
<a name="273" href="#273">273</a>                             <strong class="jxr_keyword">if</strong> (pubDate != <strong class="jxr_keyword">null</strong>)
<a name="274" href="#274">274</a>                                 <strong class="jxr_keyword">break</strong>;
<a name="275" href="#275">275</a>                         }
<a name="276" href="#276">276</a>                         <strong class="jxr_keyword">if</strong> (pubDate != <strong class="jxr_keyword">null</strong>) {
<a name="277" href="#277">277</a>                             log.debug(<span class="jxr_string">"processed Atom feed date == "</span> + pubDate);
<a name="278" href="#278">278</a>                         } <strong class="jxr_keyword">else</strong> {
<a name="279" href="#279">279</a>                             log.debug(
<a name="280" href="#280">280</a>                                 <span class="jxr_string">"Invalid Atom feed date format - "</span>
<a name="281" href="#281">281</a>                                     + pubDateStr);
<a name="282" href="#282">282</a>                         }
<a name="283" href="#283">283</a>                     }
<a name="284" href="#284">284</a> 
<a name="285" href="#285">285</a>                     String creator = <strong class="jxr_keyword">null</strong>;
<a name="286" href="#286">286</a>                     NodeList authorList =
<a name="287" href="#287">287</a>                         entryElm.getElementsByTagName(<span class="jxr_string">"author"</span>);
<a name="288" href="#288">288</a>                     <strong class="jxr_keyword">if</strong> (authorList.getLength() &gt; 0) {
<a name="289" href="#289">289</a>                         Element authorElm = (Element) authorList.item(0);
<a name="290" href="#290">290</a>                         creator = extractAuthor(authorElm);
<a name="291" href="#291">291</a>                     }
<a name="292" href="#292">292</a> 
<a name="293" href="#293">293</a>                     <strong class="jxr_keyword">int</strong> lastArticleNumber = channel.getLastArticleNumber();
<a name="294" href="#294">294</a>                     <a href="../../../../../org/methodize/nntprss/feed/Item.html">Item</a> item = <strong class="jxr_keyword">new</strong> <a href="../../../../../org/methodize/nntprss/feed/Item.html">Item</a>(++lastArticleNumber, signatureStr);
<a name="295" href="#295">295</a>                     channel.setLastArticleNumber(lastArticleNumber);
<a name="296" href="#296">296</a> 
<a name="297" href="#297">297</a>                     item.setChannel(channel);
<a name="298" href="#298">298</a> 
<a name="299" href="#299">299</a>                     <strong class="jxr_keyword">if</strong> (title.length() &gt; 0) {
<a name="300" href="#300">300</a>                         item.setTitle(title);
<a name="301" href="#301">301</a>                     } <strong class="jxr_keyword">else</strong> {
<a name="302" href="#302">302</a>                         <em class="jxr_comment">// We need to create a initial title from the description, because</em>
<a name="303" href="#303">303</a>                         <em class="jxr_comment">// we do have a description, don't we???</em>
<a name="304" href="#304">304</a>                         String strippedDesc =
<a name="305" href="#305">305</a>                             stripControlChars(XMLHelper.stripTags(description));
<a name="306" href="#306">306</a>                         <strong class="jxr_keyword">int</strong> length =
<a name="307" href="#307">307</a>                             strippedDesc.length() &gt; 64
<a name="308" href="#308">308</a>                                 ? 64
<a name="309" href="#309">309</a>                                 : strippedDesc.length();
<a name="310" href="#310">310</a>                         item.setTitle(strippedDesc.substring(0, length));
<a name="311" href="#311">311</a>                     }
<a name="312" href="#312">312</a>                     item.setDescription(description);
<a name="313" href="#313">313</a>                     item.setLink(link);
<a name="314" href="#314">314</a>                     item.setGuid(guid);
<a name="315" href="#315">315</a>                     item.setGuidIsPermaLink(guidIsPermaLink);
<a name="316" href="#316">316</a>                     item.setComments(comments);
<a name="317" href="#317">317</a>                     item.setCreator(creator);
<a name="318" href="#318">318</a> 
<a name="319" href="#319">319</a>                     <strong class="jxr_keyword">if</strong> (pubDate == <strong class="jxr_keyword">null</strong>) {
<a name="320" href="#320">320</a>                         item.setDate(retrievalDate.getTime());
<a name="321" href="#321">321</a>                         <em class="jxr_comment">// Add 1 second - to introduce some distinction date-wise</em>
<a name="322" href="#322">322</a>                         <em class="jxr_comment">// between items</em>
<a name="323" href="#323">323</a>                         retrievalDate.add(Calendar.SECOND, 1);
<a name="324" href="#324">324</a>                     } <strong class="jxr_keyword">else</strong> {
<a name="325" href="#325">325</a>                         item.setDate(pubDate);
<a name="326" href="#326">326</a>                     }
<a name="327" href="#327">327</a> 
<a name="328" href="#328">328</a> 					<em class="jxr_comment">// Invoke ItemProcessor</em>
<a name="329" href="#329">329</a> 					invokeProcessors(item);
<a name="330" href="#330">330</a> 
<a name="331" href="#331">331</a>                     <em class="jxr_comment">// persist to database...</em>
<a name="332" href="#332">332</a>                     channelDAO.saveItem(item);
<a name="333" href="#333">333</a>                     channel.setTotalArticles(channel.getTotalArticles() + 1);
<a name="334" href="#334">334</a>                 }
<a name="335" href="#335">335</a>             }
<a name="336" href="#336">336</a> 
<a name="337" href="#337">337</a>         }
<a name="338" href="#338">338</a> 
<a name="339" href="#339">339</a>         <strong class="jxr_keyword">if</strong> (!keepHistory) {
<a name="340" href="#340">340</a>             <strong class="jxr_keyword">if</strong> (currentSignatures.size() &gt; 0) {
<a name="341" href="#341">341</a>                 <strong class="jxr_keyword">if</strong> (channel.getExpiration() == 0) {
<a name="342" href="#342">342</a>                     channelDAO.deleteItemsNotInSet(channel, currentSignatures);
<a name="343" href="#343">343</a> 					channel.setTotalArticles(currentSignatures.size());
<a name="344" href="#344">344</a>                 } <strong class="jxr_keyword">else</strong> <strong class="jxr_keyword">if</strong> (
<a name="345" href="#345">345</a>                     channel.getExpiration() &gt; 0
<a name="346" href="#346">346</a> 						&amp;&amp; (channel.getLastCleaned() == <strong class="jxr_keyword">null</strong> || channel.getLastCleaned().before(
<a name="347" href="#347">347</a> 					<strong class="jxr_keyword">new</strong> Date(
<a name="348" href="#348">348</a> 						System.currentTimeMillis()
<a name="349" href="#349">349</a> 							- Channel.CLEANING_INTERVAL)))) {
<a name="350" href="#350">350</a>                     channelDAO.deleteExpiredItems(channel, currentSignatures);
<a name="351" href="#351">351</a>                     channel.setLastCleaned(<strong class="jxr_keyword">new</strong> Date());
<a name="352" href="#352">352</a>                 }
<a name="353" href="#353">353</a>             }
<a name="354" href="#354">354</a>         }
<a name="355" href="#355">355</a>     }
<a name="356" href="#356">356</a> 
<a name="357" href="#357">357</a>     <strong class="jxr_keyword">private</strong> URI extractXmlBase(Element rootElm, <a href="../../../../../org/methodize/nntprss/feed/Channel.html">Channel</a> channel) {
<a name="358" href="#358">358</a>     	<strong class="jxr_keyword">return</strong> extractXmlBase(rootElm, channel, <strong class="jxr_keyword">null</strong>);
<a name="359" href="#359">359</a>     }
<a name="360" href="#360">360</a>     
<a name="361" href="#361">361</a> 	<strong class="jxr_keyword">private</strong> URI extractXmlBase(Element rootElm, <a href="../../../../../org/methodize/nntprss/feed/Channel.html">Channel</a> channel, URI existingBase)
<a name="362" href="#362">362</a> 			 {
<a name="363" href="#363">363</a> 		URI xmlBase;
<a name="364" href="#364">364</a> 		<em class="jxr_comment">// Handle xml:base</em>
<a name="365" href="#365">365</a>     	Attr xmlBaseAttr = rootElm.getAttributeNodeNS(XMLHelper.XML_NS_URI, <span class="jxr_string">"base"</span>);
<a name="366" href="#366">366</a> 
<a name="367" href="#367">367</a>     	<em class="jxr_comment">// XXX Malformed URLs?</em>
<a name="368" href="#368">368</a>     	<strong class="jxr_keyword">try</strong> {
<a name="369" href="#369">369</a> 	    	<strong class="jxr_keyword">if</strong>(xmlBaseAttr != <strong class="jxr_keyword">null</strong>) {
<a name="370" href="#370">370</a> 	    		<strong class="jxr_keyword">if</strong>(existingBase == <strong class="jxr_keyword">null</strong>) {
<a name="371" href="#371">371</a> 	    			xmlBase = <strong class="jxr_keyword">new</strong> URI(xmlBaseAttr.getValue());
<a name="372" href="#372">372</a> 	    		} <strong class="jxr_keyword">else</strong> {
<a name="373" href="#373">373</a> 	    			xmlBase = existingBase.resolve(xmlBaseAttr.getValue());
<a name="374" href="#374">374</a> 	    		}
<a name="375" href="#375">375</a> 	    	} <strong class="jxr_keyword">else</strong> {
<a name="376" href="#376">376</a> 	    		<strong class="jxr_keyword">if</strong>(existingBase != <strong class="jxr_keyword">null</strong>) {
<a name="377" href="#377">377</a> 	    			xmlBase = existingBase;
<a name="378" href="#378">378</a> 	    		} <strong class="jxr_keyword">else</strong> {
<a name="379" href="#379">379</a> 	    			xmlBase = <strong class="jxr_keyword">new</strong> URI(channel.getUrl());
<a name="380" href="#380">380</a> 	    		}
<a name="381" href="#381">381</a> 	    	}
<a name="382" href="#382">382</a>     	}
<a name="383" href="#383">383</a>     	<strong class="jxr_keyword">catch</strong>(URISyntaxException use) {
<a name="384" href="#384">384</a>     		<em class="jxr_comment">// XXX Use channel URL - this should be ok, otherwise</em>
<a name="385" href="#385">385</a>     		<em class="jxr_comment">// we would have not got here in the first place</em>
<a name="386" href="#386">386</a>     		<strong class="jxr_keyword">try</strong> {
<a name="387" href="#387">387</a>     			<strong class="jxr_keyword">if</strong>(existingBase != <strong class="jxr_keyword">null</strong>) {
<a name="388" href="#388">388</a>     				xmlBase = existingBase;
<a name="389" href="#389">389</a>     			} <strong class="jxr_keyword">else</strong> {
<a name="390" href="#390">390</a>     				xmlBase = <strong class="jxr_keyword">new</strong> URI(channel.getUrl());
<a name="391" href="#391">391</a>     			}
<a name="392" href="#392">392</a>     		}
<a name="393" href="#393">393</a>     		<strong class="jxr_keyword">catch</strong>(URISyntaxException use2) { 
<a name="394" href="#394">394</a>     			xmlBase = <strong class="jxr_keyword">null</strong>;
<a name="395" href="#395">395</a>     		}
<a name="396" href="#396">396</a>     	}
<a name="397" href="#397">397</a> 		<strong class="jxr_keyword">return</strong> xmlBase;
<a name="398" href="#398">398</a> 	}
<a name="399" href="#399">399</a> 
<a name="400" href="#400">400</a> 	@Override
<a name="401" href="#401">401</a>     <strong class="jxr_keyword">public</strong> String processContent(Element itemElm) {
<a name="402" href="#402">402</a>         <em class="jxr_comment">// Check for xhtml:body</em>
<a name="403" href="#403">403</a>         String description = <strong class="jxr_keyword">null</strong>;
<a name="404" href="#404">404</a> 
<a name="405" href="#405">405</a>         NodeList contentList = itemElm.getElementsByTagName(<span class="jxr_string">"content"</span>);
<a name="406" href="#406">406</a> 
<a name="407" href="#407">407</a>         <strong class="jxr_keyword">if</strong> (contentList.getLength() &gt; 0) {
<a name="408" href="#408">408</a>             Element contentElm = (Element) contentList.item(0);
<a name="409" href="#409">409</a> 
<a name="410" href="#410">410</a>             String type = contentElm.getAttribute(<span class="jxr_string">"type"</span>);
<a name="411" href="#411">411</a>             String mode = contentElm.getAttribute(<span class="jxr_string">"mode"</span>);
<a name="412" href="#412">412</a>             <strong class="jxr_keyword">if</strong> ((type.startsWith(<span class="jxr_string">"application/xhtml"</span>)
<a name="413" href="#413">413</a>                 &amp;&amp; !mode.equalsIgnoreCase(<span class="jxr_string">"escaped"</span>)) || 
<a name="414" href="#414">414</a>                 type.equals(<span class="jxr_string">"xhtml"</span>)) {
<a name="415" href="#415">415</a>                 <em class="jxr_comment">// xhtml body 				</em>
<a name="416" href="#416">416</a>                 NodeList children = contentElm.getChildNodes();
<a name="417" href="#417">417</a>                 StringBuffer content = <strong class="jxr_keyword">new</strong> StringBuffer();
<a name="418" href="#418">418</a>                 <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> childCount = 0;
<a name="419" href="#419">419</a>                     childCount &lt; children.getLength();
<a name="420" href="#420">420</a>                     childCount++) {
<a name="421" href="#421">421</a>                     content.append(children.item(childCount).toString());
<a name="422" href="#422">422</a>                 }
<a name="423" href="#423">423</a>                 description = content.toString();
<a name="424" href="#424">424</a>             } <strong class="jxr_keyword">else</strong> {
<a name="425" href="#425">425</a>                 <em class="jxr_comment">// escaped text...				</em>
<a name="426" href="#426">426</a>                 description = XMLHelper.getElementValue(contentElm);
<a name="427" href="#427">427</a>             }
<a name="428" href="#428">428</a>         }
<a name="429" href="#429">429</a> 
<a name="430" href="#430">430</a>         <em class="jxr_comment">// If all else fails, drop back and use the contents of the summary...</em>
<a name="431" href="#431">431</a>         <strong class="jxr_keyword">if</strong> ((description == <strong class="jxr_keyword">null</strong>) || (description.length() == 0)) {
<a name="432" href="#432">432</a>             description =
<a name="433" href="#433">433</a>                 XMLHelper.getChildElementValue(itemElm, <span class="jxr_string">"summary"</span>, <span class="jxr_string">""</span>);
<a name="434" href="#434">434</a>         }
<a name="435" href="#435">435</a>         <strong class="jxr_keyword">return</strong> description;
<a name="436" href="#436">436</a>     }
<a name="437" href="#437">437</a> 
<a name="438" href="#438">438</a>     <strong class="jxr_keyword">private</strong> String extractLink(<a href="../../../../../org/methodize/nntprss/feed/Channel.html">Channel</a> channel, Element itemElm, URI xmlBase) {
<a name="439" href="#439">439</a>         String link = <strong class="jxr_keyword">null</strong>;
<a name="440" href="#440">440</a> 
<a name="441" href="#441">441</a>         <em class="jxr_comment">// Get entry's XML base</em>
<a name="442" href="#442">442</a>         URI entryXmlBase = extractXmlBase(itemElm, channel, xmlBase);
<a name="443" href="#443">443</a>         NodeList elemList = itemElm.getChildNodes();
<a name="444" href="#444">444</a>         <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> i = 0; i &lt; elemList.getLength(); i++) {
<a name="445" href="#445">445</a>             <strong class="jxr_keyword">if</strong> (elemList.item(i).getNodeName().equals(<span class="jxr_string">"link"</span>)
<a name="446" href="#446">446</a>                 &amp;&amp;
<a name="447" href="#447">447</a>                 ( elemList.item(i).getNamespaceURI().equals(XMLNS_ATOM) ||
<a name="448" href="#448">448</a>                 elemList.item(i).getNamespaceURI().equals(XMLNS_OLD_ATOM)) ) {
<a name="449" href="#449">449</a>                 Element linkElm = (Element) elemList.item(i);
<a name="450" href="#450">450</a>                 Attr linkRelNode = linkElm.getAttributeNode(<span class="jxr_string">"rel"</span>);
<a name="451" href="#451">451</a>                 <strong class="jxr_keyword">if</strong>(linkRelNode == <strong class="jxr_keyword">null</strong> || linkRelNode.getValue().equals(<span class="jxr_string">"alternate"</span>)) {
<a name="452" href="#452">452</a>                     String entryLink = linkElm.getAttribute(<span class="jxr_string">"href"</span>);
<a name="453" href="#453">453</a>                     link = entryXmlBase.resolve(entryLink).toString();
<a name="454" href="#454">454</a>                     <strong class="jxr_keyword">break</strong>;
<a name="455" href="#455">455</a>                 }
<a name="456" href="#456">456</a>             }
<a name="457" href="#457">457</a>         }
<a name="458" href="#458">458</a>         <strong class="jxr_keyword">return</strong> link;
<a name="459" href="#459">459</a>     }
<a name="460" href="#460">460</a> 
<a name="461" href="#461">461</a> }
</pre>
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